Page History

There are three modes of storing faces and related data, depending on the value of the following registry keys (see Registry keys reference guide):

...

Starting from Face Intellect version 7.1,

...

the

...

images

...

of captured and

...

recognized faces and vectors are stored in a folder, the path to which is specified in the FaceDB registry key. This data storage mode corresponds to the UseFaceDB = 2 mode and is set forcibly when Face Intellect starts (see Registry keys reference guide, for details about working with the registry, see Working with Windows OS registry).

UseFaceDB = 2 mode provides maximum search speed and storage depth. The general algorithm Modes of Face Intellect operation and storing faces and related data for each value of the UseFaceDB key are given in the table.

...

Database

Information about recognized faces is stored in the Hits table.

When an event of recognition occurs, an entry in the Hits table is added to match a captured face identifier in the FIRS table with reference face identifier in the Persons table.

...

• Face search first connects to the database, reads the data set, compares it, and saves the result. This is the slowest search process.
• Metadata, images and vectors are stored in the database. As a consequence, the database quickly overflows and begins to be automatically cleaned, which does not provide sufficient storage depth.

...

• At startup, the server reads all the data from the folder into memory and performs the search. Further the received data are written to the memory, to the database and to the folder. This is the fastest search process.

• All search is carried out in operative memory. As a consequence, there is a high memory consumption and a longer server start.

• Metadata, images and vectors are also stored in the database. As a consequence, the database quickly overflows and begins to be automatically cleaned, which does not provide sufficient storage depth.

...

• At startup, the server reads all the data from the folder into memory and performs the search. Further the received data are written to the memory, to the database and to the folder. This is the fastest search process.
• All search is carried out in operative memory. As a consequence, there is a high memory consumption and a longer server start.
• Metadata is stored in the database, but images and vectors are stored only in the folder on disk. As a result, the database overflows slower and provides maximum storage depth.

in this mode is as follows:

• At startup, the Server reads all data from the folder into RAM. Then the received images and vectors are written to the RAM and to the folder, and the metadata is written to the database. This ensures the fastest possible search process.
• All searches are carried out in RAM. However, this entails a high consumption of RAM and a longer start of the Server.
• Metadata is stored in the Fir database in the Hits table. Since the images and vectors are stored in a folder on disk, the database will fill up much more slowly. This ensures maximum storage depth.

The reference faces are stored in the <Intellect installation directory>\Bmp\<Person> folder.

...